Separable fastener



F. S. CARR. SEPARABLE FASTENER. APPLICATION FILED MAR. 8. 192i.

Patented Oct. 31, 1922.,

Patented @et 3l, H322.,

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FRED S. CARR, 0F NEWTON, lVllSSACHUSETTS, ASSIGNOR T0 CARR FASTENER COMI'ANY, OF CAMBRIDGE, MASSCHSF'TTS, A CDRPOBJATl-ON OF :MAINE SEQAEABLIE FASTENER.

Application :ned March e, 192i. sei-iai no. 450,739.

T 0 @Zlio/wm 'it may concer/"t:

lle it known that l, Finn) S. Gann, a citizen of the United States, and a resident of Newton, in the county of Middlesex, Commonwealth of Massachusetts, have invented an Improven'ient in tieparable Fasteners, of which the following description, in connection with the accompanying drawings, is a speciiication, like characters on the drawings representing like parts.

This invention pertains to improvements in separable fasteners. it is among the objects of the invention to provide a separable fastener of inexpensive construction having superior holding power and which may be, if desired, relatively thin.

ln the drawings, which show a preferred forni of one embodiment of my invention z- Figure l is a front elevation of two pieces of fabric, one carrying the stud member and the other the socket member of a preferred form of separable fastener;

Fig. 2 is a section on the line 2 2 of Fig. 1;

Fig. 3 is a front elevation of the preferred form of socket member; andv F ig.4 is a front elevation of the preferred form of stud member.

Referring to the drawings and to the preferred form of my invention selected for illlilstrative purposes, I have shown a stud includingl a head 5, a neck 6 and a base portion 'T secured to the stud-carrying fabric S in any suitable way, but preferably as indicated by stitching 9. The head and neck of the stud are preferably out of center of the base of the stud, as best shown in Fig. 1l, the head of the stud being located in the line of strain between stud and socket, such line of strain ordinarily being perpendicular to and toward the edge ofthe stud-carrying fabric 8.

The preferred form of socket illustrated may be and preferably is, as illustrated,

formed from sheet metal to provide a stud-` receiving aperture l() surrounded by a plurality of stitch-receiving openings 11. At one side the socket is preferably completelyT slotted through as at 13, and this side, which is preferably located away from the edge of the socket-carrying fabric le, may be provided with two stitch-receiving openings, one each side of the slot. The stud-receiving aperture l() is preferably somewhat out of center, the eccentricity preferably, as indicated, being toward that side of the fastener which adjacent the margin of the socketcarrying fabric and in the normal line of strain between stud and socket. ln the preferred form of my invention illustrated, this brlngs the axis of the stud-receiving aperture as viewed in Fig. somewhat tolthe right of a line between the stitch-receiving openings above and below the stud-receivina aperture.

When stud and socket are secured to their carrying fabrics and subjected to lateral st rain to the right and left respectively as viewed in Fig. l, the tipping moment produced by the lresolution of pforces between stud and socket is minimized because the eccentric positioning of the stud relative to its base, and of the stud-receiving aperture relative to the socket as a whole, provides a leverage unfavorable to tipping movement, especially where all or a greater part of the attachments of the fastener parts to their carrying fabrics respectively are located as indicated on those portions of the fastening elements furthest removed from the margins of their respective carrying fabrics.

l/llhile l have shown and described a preferred form of one embodiment of my invention, it will be understood that changes involving omission, substitution, alteration and reversal of parts, and even changes in the mode of operation, may be made without departing from the scope of my invention, which is best defined in the followingclaims'.

Claims. L'

Il. A separable snap fastener comprising, 1n combination1 a stud having a head, a neck and a base portion, and a socket including a relatively fiat spring portion having a stud-receiving aperture at one side of the center thereof, said spring portion having a slot extending from the stud-receiving aperture to the periphery of said spring portion, said slot located on that side of the socket opposite the side thereof which is normally under lateral strain between stud and socket.

A separable snap fastener comprising, in combination, a stud having a head, a neck and a baseportion, and a socket including a relatively flat spring portion having a stud-receiving aperture at one side of the center thereof, said spring portion having slot extending from the stud-receiving aperture to the periphery of said spring portion, said slot located on that side of the socket opposite the side thereof which is normally under lateral strain between stud and socket, and stitch-receiving openings in said spring portion at each side of said slot;

3. A rseparable snap fastener comprising, in combination, a stud having a head, a neck and a base portion, and a socket including a relativel57 flat spring portion having a studreceiving` aperture, said spring portion having openings therethrough permitting stitching of tire socket to its carryingfabric, a slot extending Lfrom the stucl-receiving,` aper`- ture of said spring portion to the peripherj7 thereof, said slot located on that side ofy the sooket opposite the Side thereof Vwhich is normally under lateral strain between stud and socket.

4. A separable snap fastener comprising, in combination, a stud having a head, a neck and a base portion, and a socket including a relatively Hat spring portion having a stud-receiving aperture, said spring portion having openings therethrough permitting stitching of the socket to its carrying fabric, a slot extending' from the stud-receiving aperture o'f'said spring portion to the periphery thereof, said spring portion imperforate between said openings and said studreceiving aperture and perip'herally recessed between said openings 'to increase the resi-lienoy of said spring portion. Y

\ ln testimony whereof, I have signd'ry name to this specification,

FRED S. CARR. 

